参数资料
型号: A4989SLDTR-T
厂商: Allegro Microsystems Inc
文件页数: 3/17页
文件大小: 0K
描述: IC FULL BRDG MFET DRVR 38TSSOP
标准包装: 1
应用: 步进电机控制器,2 相
输出数: 1
电压 - 负载: 12 V ~ 50 V
电源电压: 3 V ~ 5.5 V
工作温度: -20°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 38-TFSOP(0.173",4.40mm 宽)
供应商设备封装: 38-TSSOP
包装: 标准包装
其它名称: 620-1389-6
A4989
+5 V
VDD
Bandgap
VBB
Regulator
Dual Full-Bridge MOSFET Driver
with Microstepping Translator
Functional Block Diagram
V MOTOR
VREG
CREG
P
V REG
Phase 1A
C1A
Bridge1
CBOOT1A
REF
V REF
High-Side
GH1A
Drive
S1A
RGH1A
RGH1B
V REG
DAC
Low-Side
GL1A
STEP
Drive
LSS1
RGL1A
RGL1B
PWM Latch
Blanking
SENSE1
DIR
Mixed Decay
Phase 1B
RSENSE1
P
Low-Side
GL1B
MS1
Phase 1
Drive
S1B
MS2
PFD1
Translator
Phase 1
Control Logic
High-Side
Drive
Phase 2A
GH1B
C1B
C2A
CBOOT1B
V MOTOR
Bridge2
CBOOT2A
PFD2
Phase 2
High-Side
GH2A
Phase 2
Control Logic
Drive
S2A
RGH2A
RGH2B
V REG
ENABLE
Low-Side
GL2A
Drive
LSS2
RGL2A
RGL2B
RESET
PWM Latch
SENSE2
SR
Blanking
Mixed Decay
Phase 2B
RSENSE2
P
DAC
Low-Side
Drive
GL2B
S2B
OSC
High-Side
GH2B
ROSC
Protection
V REF
Drive
C2B
CBOOT2B
UVLO
TSD
GND
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
3
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